Add Google GenAI plugin samples #1320

Job	Run time
build-lint-test (3.10, macos-intel)	13m 4s
build-lint-test (3.14, macos-arm)	7m 22s
build-lint-test (3.14, macos-intel)	11m 33s
build-lint-test (3.10, macos-arm)	8m 57s
build-lint-test (3.10, windows-latest)	7m 42s
build-lint-test (3.10, ubuntu-latest)	6m 45s
build-lint-test (3.14, windows-latest)	7m 37s
build-lint-test (3.14, ubuntu-latest)	6m 24s
	1h 9m 24s

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